Your search for "Gravestone Strider 252" revealed the following:
Gravestone Strider (Foil) (MKM) from Murders at Karlov Manor, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Tom Babbey Card Text:1: Add one mana of any color. Activate only once each turn.2, Exile Gravestone Strider from your graveyard:...
Gravestone Strider (MKM) from Murders at Karlov Manor, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Tom Babbey Card Text:1: Add one mana of any color. Activate only once each turn.2, Exile Gravestone Strider from your graveyard: Exile...